2025 Washington Class Championships - Kasparov (1600-1799)
Open SwissStandard
36 players participated in this 6-round tournament, held from 28 Nov 2025 to 30 Nov 2025 in Bellevue, WA, United States. 1 titled players from 3 federations. Top 10 Elo average was 1712, and top seed was Robin Tu (🇺🇸 USA, 1745).
Rian Raja (🇺🇸 USA, 1637) won with 5.0/6, ahead of Zane Wirkkala (5.0) and Shanna Wu (4.0). Raja shared the lead from round 2, winning on tie-break.
The biggest upset came in round 1: Allen Chang (1458) beat William Wachania Wachira (CM, 1711), a +253-point gap.
Location
🇺🇸Bellevue, WA, United States
Dates
28 Nov 2025 → 30 Nov 2025
Time control
Standard: 30 Moves in 90 Min. Incr. 30 Sec. / / 30 Min. 30 Sec.
System
Swiss · 6 rounds
Titled players · 1
CM×1
Federations · 3 represented
🇺🇸United States of America×34
🇮🇳India×1
🇰🇪Kenya×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsTight race until R4; 2 players tied at 5.0/6, decided on Buchholz.
Co-leaders
12
4
2
1
5
2
R4–R6 · LEAD HELD
Rian Raja held the sole lead from R4 through R6 without losing it.
R6 · TIEBREAK CLUSTER
2 players finish on 5.0/6. Raja takes the title on Buchholz Cut1 (20.0).
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Rian Raja lost to Zane Wirkkala (Black).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Rian Raja | * | 0 | 1 | — |
| 2Zane Wirkkala | 1 | * | 1 | — |
| 3Shanna Wu | 0 | 0 | * | — |
| 4Robin Tu | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Raja, Rian | 1637 | USA | +8N | +22B | +9N | +3B | −2N | +4B | 5.0 | 20.0 | 22.0 | 17.00 | 1892 | +64.0 |
| 2 | Wirkkala, Zane | 1718 | USA | =32B | +27N | +17B | =7N | +1B | +3B | 5.0 | 16.5 | 17.5 | 15.25 | 1870 | +36.4 |
| 3 | Wu, Shanna | 1708 | USA | +35N | +13B | +10B | −1N | +21B | −2N | 4.0 | 18.5 | 19.0 | 9.00 | 1758 | +21.6 |
| 4 | Wu, Harry | 1622 | USA | +28N | =14B | =5N | +36B | +16N | −1N | 4.0 | 16.5 | 16.5 | 8.00 | 1800 | +28.8 |
| 5 | Lamb, Anthony L | 0 | USA | +26B | =20N | =4B | +8N | +7B | F | 4.0 | 14.5 | 14.5 | 11.50 | 1616 | 0.0 |
| 6 | Tu, Robin | 1745 | USA | =17N | −7B | +13N | +20B | +18N | =25B | 4.0 | 13.5 | 15.5 | 9.75 | 1724 | -2.4 |
| 7 | Stroud, Jeb Thacher | 1687 | USA | =30B | +6N | +20B | =2B | −5N | =10N | 3.5 | 18.5 | 20.0 | 11.00 | 1845 | +33.2 |
| 8 | Sardar, Ekam S | 0 | USA | −1B | +23N | +24B | −5B | =9N | +19B | 3.5 | 17.0 | 19.0 | 8.25 | 1708 | 0.0 |
| 9 | Evin, Terrick | 1633 | USA | +23B | +11N | −1B | −21N | =8B | +17B | 3.5 | 16.5 | 18.5 | 9.75 | 1724 | +25.6 |
| 10 | Subcleff, Jackson | 1685 | USA | +33N | +15B | −3N | =31B | =11N | =7B | 3.5 | 15.5 | 16.5 | 8.25 | 1694 | +2.4 |
| 11 | Davies, Cedric | 1687 | USA | +18N | −9B | +15N | F | =10B | +13N | 3.5 | 15.5 | 15.5 | 10.25 | 1785 | +26.4 |
| 12 | Pan, Peng-Ruei | 1546 | USA | −13B | −18N | +26B | =34N | +27B | +14N | 3.5 | 11.5 | 12.5 | 6.50 | 1452 | -14.8 |
| 13 | Raj, Skandha | 1536 | USA | +12N | −3N | −6B | +32B | +15N | −11B | 3.0 | 18.0 | 19.0 | 7.50 | 1650 | +36.0 |
| 14 | Zhu, Aiden | 0 | USA | +19B | =4N | −21B | =24N | +29N | −12B | 3.0 | 14.0 | 15.5 | 7.00 | 1637 | 0.0 |
| 15 | Gupta, Krishang | 1670 | USA | +29B | −10N | −11B | +23N | −13B | +26N | 3.0 | 13.5 | 15.0 | 5.00 | 1605 | -20.8 |
| 16 | Wachira, William WachaniaCM | 1711 | KEN | −20B | +26N | +27B | +22N | −4B | −31N | 3.0 | 11.0 | 12.5 | 5.00 | 1518 | -25.4 |
| 17 | Xu, Zoe Yue | 1556 | USA | =6B | +32N | −2N | +30B | −25B | −9N | 2.5 | 16.0 | 17.0 | 4.50 | 1518 | -15.6 |
| 18 | Stahl, Darren | 1695 | USA | −11B | +12B | +28N | =25N | −6B | −24N | 2.5 | 15.0 | 16.5 | 6.00 | 1521 | -36.4 |
| 19 | Koripella, Dheeran S | 1718 | USA | −14N | +35B | −22N | =28B | +34B | −8N | 2.5 | 11.0 | 11.5 | 2.25 | 1556 | -16.8 |
| 20 | Chang, Allen | 1458 | USA | +16N | =5B | −7N | −6N | =24B | −23B | 2.0 | 16.5 | 18.5 | 6.00 | 1549 | +19.6 |
| 21 | Mathews, Daniel | 1706 | USA | −22B | F | +14N | +9B | −3N | F | 2.0 | 12.5 | 12.5 | 6.50 | 1515 | -15.4 |
| 22 | Vemuri Vihari | 1598 | IND | +21N | −1N | +19B | −16B | F | F | 2.0 | 12.5 | 12.5 | 4.50 | 1693 | +10.2 |
| 23 | Chen, Andy | 1653 | USA | −9N | −8B | +35N | −15B | F | +20N | 2.0 | 12.5 | 12.5 | 2.50 | 1569 | -18.0 |
| 24 | Cheng, Selina | 1696 | USA | F | F | −8N | =14B | =20N | +18B | 2.0 | 11.0 | 11.0 | 5.00 | 1751 | +6.0 |
| 25 | Merriman, Dann H | 1678 | USA | F | F | F | =18B | +17N | =6N | 2.0 | 9.0 | 9.0 | 5.75 | 1785 | +16.8 |
| 26 | Ma, Lewis | 1545 | USA | −5N | −16B | −12N | =35B | +32N | −15B | 1.5 | 14.5 | 15.0 | 1.25 | 1451 | -23.2 |
| 27 | Singhal, Aksh | 0 | USA | F | −2B | −16N | =33B | −12N | +35B | 1.5 | 13.0 | 13.0 | 1.00 | 1429 | 0.0 |
| 28 | Mohammed, Moinuddin | 0 | USA | −4B | +30N | −18B | =19N | F | F | 1.5 | 10.5 | 10.5 | 2.75 | 1393 | 0.0 |
| 29 | Allen, Robert | 1533 | USA | −15N | =33B | =32N | F | −14B | =34N | 1.5 | 9.0 | 9.0 | 1.50 | 1422 | -11.2 |
| 30 | Hyman, Daniel P | 0 | USA | =7N | −28B | +33N | −17N | F | F | 1.5 | 8.5 | 8.5 | 2.75 | 1439 | 0.0 |
| 31 | Yuodelis, Kenneth | 1737 | USA | F | F | F | =10N | F | +16B | 1.5 | 6.5 | 6.5 | 4.75 | 1891 | +15.6 |
| 32 | He, Oliver Lang | 1559 | USA | =2N | −17B | =29B | −13N | −26B | F | 1.0 | 13.5 | 13.5 | 3.25 | 1340 | -54.8 |
| 33 | Kottcamp, Jeff | 0 | USA | −10B | =29N | −30B | =27N | F | F | 1.0 | 8.0 | 8.0 | 1.50 | 1416 | 0.0 |
| 34 | Avula, Guru Harshith | 1620 | USA | F | F | F | =12B | −19N | =29B | 1.0 | 7.5 | 7.5 | 2.50 | 1474 | -23.2 |
| 35 | Guo, Loida | 1524 | USA | −3B | −19N | −23B | =26N | F | −27N | 0.5 | 11.5 | 11.5 | 0.75 | 1328 | -31.6 |
| 36 | Rubaiyat, Rhadean | 1678 | USA | F | F | F | −4N | F | F | 0.0 | 4.0 | 4.0 | 0.00 | 822 | -23.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Raja, RianUSA+64.05.0 pts · #3
- 2Wirkkala, ZaneUSA+36.45.0 pts · #4
- 3Raj, SkandhaUSA+36.03.0 pts · #7
Top rating losers
- 1He, Oliver LangUSA-54.81.0 pts · #27
- 2Stahl, DarrenUSA-36.42.5 pts · #20
- 3Guo, LoidaUSA-31.60.5 pts · #32
Biggest upsets
- R1+253 Elo gap
- R5+134 Elo gap
- R3+120 Elo gap